Hand-Stand Glow Plug Refillable Air Freshener - Fresh Scent Scent Innovative plug in car air freshener will certainly grab your attention Glow Plug car air freshener is available in two vibrant colors Air freshener plugs into your car's DC socket/cigarette lighter Life of the Glow Plug Air Freshener increases when kept in an enclosed area where air flow is more restricted (i.e. a car with its windows rolled up) Also Available in 6-Packs